Machine for slotting umbrella-sticks



(No Model.) 2 's'neets-shet 1.

M.GANS. MAGHINE FOR SLO'ITING UMBRELLA STICKS. No. 524,418. PatentedAug. 14, 1894.

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WITNEEEEE': INVEN'TEIR. W MM yam ATTLTRNEY.

2 Sheets-Sheet 2.

(No Model.)

M GANS MAGHINE FOR SLOTTING UMBRELLA STICKS.

INVENT R:

7CZMQM Patented Aug. 14, 1894.

E E 5 E N m w ATTEJRNEY PATENT OFFICE.

UNITED STATES MosEs GANS, or BALTIMORE, MARYLAND.

MACHINE FOR SLOTTING UMBRELLA-STICKS.

SPECIFICATION forming part of Letters Patent No. 524,4 18, dated AugustI4, 1894.

Appli i n fil November 1, 1893- Serial No. 489,712. (No model.)

To aZZ whom it may concern:

Be it known that I, MOSES GANS, a citizen of the United States, in theState of Maryland, have invented certain new and useful Improvements inMachines for Slotting Umbrella-Sticks, of which the following is aspecification.

This invention relates to a machine for sawing kerfs in the sticks orhandles of umbrellas. These sticks in the finished umbrella are providedwith two spring catches which engage the runner,one of the springcatches holds the runner when the umbrella is open, and the other holdsit when the umbrella is closed; each of these spring catches occupy, orare movable in, slots or kerfs cut in the stick. It is important to havethese slots or kerfs cut with accuracy; they should be of a certaindepth, and should be located a certain distance apart on the stick, anda definite distance from the end of the stick; it is also desirable thateach of these two slots or kerfs should be in adifferent radial linefrom the other.

The object of this invention, therefore, is to provide a machine whichwill out both of these slots or kerfs simultaneously and accurately.

In order to make my invention understood, I have shown in theaccompanying drawings a construction for carrying the same intopractical effect, without, however, intending to limit the invention tothe particular construction shown.

Figure 1 is a top or plan view of the machine, a certain part being insection, and the arms, shafts and bars being shown broken as theirproportionate length would be too great for the sheet on which thedrawing is made. Figs. 2 and 3 show, respectively, a transverse or crossview of the bearings for one saw, and a front side view of the other sawand its bearings. Fig. 4 is a side elevation of the same,-the rods beingbroken as in Fig. 1. Fig. 5 is a detail side view of one stick holder.Fig. 6 is a view of the treadle-arm by means of which the saw-carryingshaft is tilted. Fig. 7 shows a view of the stop for the end of thestick that is to be cut.

The letter, A, designates a base and standard of the machine; its fiatbottom, a, is deresiding at Baltimore,

signed to set upon a table or stand of any desired kind. A

B, B, designate standards-which are also designed to set upon the table.

On the base, A, are two bearings, 12, in which is a revoluble shaft, C,carryinga pulley, c, to be driven by a belt from any source of power. AThe end of the drive-shaft, 0, carries a bevel gear wheel, (1.

An oscillatory head, D, is suitably mounted on the drive-shaft so as topermit of being tilted and to allow the drive-shaft to revolve. In thepresent instance this headhas a lateral trunnion or wrist, D, which fitsin the two bearings, I), while the drive-shaft, G, turns freely in abore, d, made through both the head and trunnion. Top plates, 1),confine the trunnion, D, in the bearings.

The oscillatory head, D, carries two rigid arms, E, E, eachprojectingfrom an opposite side of the head, and each carryinga circularsaw, F, F, mounted as hereinafter described. The end of each arm hasattached 'to it a plate, e, which has alaterallyprojectingbearing, e,for the end of a revoluble shaft, G, which extends the entire length ofthe two rigid arms, E, E. This shaft is supported at its center andturns in two bearings, f, on the oscillatory head, D. This shaft carriesa miter gear wheel, f, which meshes with the wheel, d, on thedrive-shaft, O.

Each circular saw, F, F, is mounted on a short shaft, g, which issupported in bearings, 17., mounted on the rigid arm, E; this shortshaft has position crosswise of the revoluble shaft, G; a spiral gearwheel, 11, is fixed on each short shaft, 9, and meshes with a like gear,2", fixed on the shaft, G, and thus the circular saw is driven. Thebearin gs, 7t, have asplit clip, h which take about the rigid arm, E, orE, as the case may be,--and a screw, j, passed through the two partscomprising the split serves to clamp the clip tightly on the arm. Ofcourse these hearings which carry the saw shaft, g, may be moved orshifted along the arm, E, so asto locate the saw at any desired distancefrom the oscillatory head, D, by simply loosening the screw, j.

The revoluble shaft, G, has a longitudinal groove, is, and the spiralgear wheel, 11, on

this shaft has an ordinary feather or spline (not shown) which takesinto the groove; thus the gear wheel, '6, cannot turn loose on theshaft, G, but it can slide along the shaft whenever it is desired tochange the adjustment or location of the circular saw. 7 From thisdescription it will be understoo that the head, D, arms, E,E, revolubleshaft, 0, and thetwo circular saws, all oscillate or tilt, the shaft, 0,being the axis or center point on which they tilt; and it will also beunderstood that as each circular saw, F, F, is alike fixed on the arms,E, E, they always have the same relative position with respect to eachother.

To produce the tilting of the head and other parts the trunnion orwrist, D, is provided with a lateral arm, Z, having an adjustable stopto limit its throw and thus limit the extent of the tilt of theoscillatory head, D. By

reference to Figs. 1, 4 and 6, this construction will be seen. The stop,m, projects at a right angle from the arm, Z, and carries a set-screw,m; when the lateral arm, Z, is pulled down, the end of the set screwwill impinge against the vertical wall, it, of the standard, A, and

thereby be stopped; this vertical wall, 0%, is

denoted in Fig. 4. by two vertical broken lines. A vertical rod, 0, isattached to the lateral arm, Z, by a joint, 0, and this rod will extenddown to a treadle (not shown) on the floor. spring should be connectedwith the treadle and floor in such manner as to keep the verand therebymaintain the head, D, and sawarms, E, E, in a 'tilted position, ratherthan ahorizontal position; the normally-tilted position referred to, isindicated in Fig.4 by an inclined broken line, 19. It should be statedthat one of the circular saws, F, is to make its out in the stickdownward, and the other saw, F, is to make its out upward. Hence whenthe treadle is depressed the parts will be tilted from thenormally-inclined position of the line, p, to a horizontal position,thereby lowering the saw, F, down on top of the stick and raising theother saw, F ,up to the under side of the stick; thus the stick duringthis operation is in the plane of and in a line between the two saws andthe two kerfs thus cut in the stick will be on opposite sides thereof.

Two horizontal stationary bars, I, I, are employed to sustain thestick-holders; The stick here referred to is the stick or handle for theumbrella. The standard, A, has on its front a lug, q, see Fig. 4, andone bar, 1, extends from this lug to the standard, B; the top plate, I)has an upward and forward-projecting arm, g, which supports one end ofthe other bar, I, while the opposite end' is necessary to press itlaterally between the overlapping spring and the seat, whereupon thestick will enter the V-shaped seat. These two seats of the holder, J,have a vertical shank, t, which enters an arm, 0., and is securedtherein by a set-screw, v; the seats, 7', may be adjusted verticallywith respect to the arm, t, by means of the set-screw, Q). The arm, u,has a socket, 0c, and a set-screw, y; the socket fits on the horizontalstationary arm, I, and the set-screw, 'y, impinges against the saidstationary arm and holds it. It will be seen that this holder, J, justdescribed, may be shifted or moved along the stationary arm to anydesired point to co-act with the circular saw, F, at whatever positionit may be set. As to the other or second stick-holder, J, thedescription just given of the first holder applies also to it; the onlydifference is that the second one is inverted or turned upside down. Thesame letters of reference employed in describing the parts of the firststick-holder are also employed with the addition of a primemark for thesame parts of the second holder.

A device by which the umbrella stick may be held from movement and gagedwith respect to the position of the saws to determine 7 where the slotsor kerfs shall be cut, is attached to the end of the horizontalstationary bar, I; this device has a pendent plate, L, provided with aset-screw, 2, whereby it may be adjusted along said bar and held at anytical rod, 0, and lateral arm normally elevated desired position, and alateral extension, L. When the umbrella stick, N, see Fig. 7, is placedin the stick-holders, the handle rests under the lateral extension, L,so that both the stick and the lateral extension can be grasped by thehand of the operator and held from movement while the .kerfs are beingsawed.

In operating the machine, an umbrella stick is placed in the twoholders, J, J,the treadle referred to will be depressed which draws downthe rod, 0, and tilts the oscillatory head, and thereby brings the tworevolving saws, F, F, against the'stick. I

Many modifications in the form and construction of the various parts ofthe machine will suggest themselves; for instance, instead of having thestick-holders stationary, and the circular saws movable, that is,carried by the oscillatory head, it is obvious that the action of theseparts may be reversed, that is, the stick-holders may be movable, orcarried by an oscillatory head, while the circular saws remainstationary, this and other variations I intend to cover by the followingclaims.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In amachin'e for sawing kerfs in sticks for umbrella handles, thecombination of the following threev elements, to wit,-two circular sawswhich always have the same relative position with respect to each other;stick-holders to support the stick in the plane of and in IIO twocircular saws which are carried upon oscillatory arms the axis or centerof which is the said revoluble shaft; means to transmit movement fromthe revoluble shaft to the saws; a stick-holder to support a stick to becut in the plane of and in a line between the two saws; and means tocause said oscillatory arms to tilt so as to bring the saws in positionto cut kerfs on opposite sides of the stick.

3. The combination of an oscillatory head; a shaft, G,-revoluble inbearings on the oscillatory head and said shaft being the axis or centerthereof; two circular saws mounted on shafts which are carried by saidoscillatory head; means to transmit movement from the revoluble shaft tothe saws; a stick-holder to support a stick in the plane of and in aline between the two saws; and means to cause said oscillatory head totilt so as to bring the saws in position to cut kerfs simultaneouslyonopposite sides of the stick.

4. .The combination of an oscillatoryhead; a shaft, G, revoluble inbearings on the oscillatory head; circular saws to which motion isimparted by the revoluble shaft; stick-holders to support a stick in theplane of and in a line between the saws; and a rod, 0, connected withthe oscillatory head and leading to a treadle whereby the said head istilted.

5. The combination or a drive-shaft; an 0scillatory head the axis orcenter of which is the said drive-shaft; a trunnion or wrist attached tothe oscillatory head and provided with a lateral arm; a rod leading fromsaid arm to a treadle; two circular saws driven by a connection from thedrive-shaft and a stickholder to support the stick in line with said twosaws.

6. The combination of an oscillatory head;

a shaft, G, revoluble in hearings on the oscillatory head; circular sawsto which motion is impartedby the revoluble shaft; two horizontalstationary bars, and an adjustable stickholder on each bar in the planeof and in a line between said saws. t

7. The combination of an oscillatory head having an adjustable stop tolimit the extent of the tilt of the said oscillatory head; means toefiect the tilting of said head; two circular saws; and a stick-holderto support the stick in the plane of and in a line between the two saws.

8. The combination of a revolnble shaft; two circular saws mounted onshafts carried upon oscillatory arms the axis of which is the saidrevoluble shaft; a stick holder to support a stick in the same plane andin a line be tween the circular saws; and means to shift the saws towardor away from each other so as to vary the distance at which the slotswill be cut'on the stick.

In testimony whereof I affix my signature in the presence of twowitnesses.

MOSES GANS.

Witnesses:

CHAS. B. MANN, O. O. HINES.

